CN2379294Y

CN2379294Y - Full automatic lifting/lowering type sectional heating device

Info

Publication number: CN2379294Y
Application number: CN 99215202
Authority: CN
Inventors: 林子祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-24
Filing date: 1999-06-24
Publication date: 2000-05-24
Anticipated expiration: 2009-06-24

Abstract

The utility model relates to a full automatic lifting/lowering type sectional heating device which is provided with a group of machine frames on which a running mechanism composed of a power device, a transmission shaft, a transmission gear and a transmission chain; one side of the transmission chain is connected with a tube blank support frame; both sides of a running route of the tube blank support frame are provided with heating devices; an annular gear rack is arranged under the running mechanism; an autorotation small gear is arranged on a rotary shaft of the support base in the tube blank support frame; the autorotation small gear is matched with the annular gear rack; the rotary shaft of the support base is connected with a tube blank holder. The utility model is especially suitable for heating plastic tube blanks, which is two-step method auxiliary equipment for producing plastic package containers.

Description

Full rotation lift subregion heater

The utility model relates to heater, is exclusively used in the heating of plastic pipe, belongs to the corollary equipment that two-step method is produced hollow plastic container.

Adopt injection moulding, stretch blow two-step method to produce the hollow plastic packing container,, need heat the pipe of injection moulding as Coke bottle, mineral water bottle and various bottle for cosmetics etc., then to the heating pipe by the stretch blow moulding, firing equipment that promptly must the application pipe.Its existing plastic pipe firing equipment is more representational to be two types: a kind of is fixed baking oven type, and as Chinese patent 88221296X, name is called " equipment of producing plastic containers "; Another kind is movable rotary-type, is 93209753.7 as the patent No., and name is called " a kind of rotary infrared heating device ".It is fast that the latter has firing rate than the former, and heating uniformity improves, especially characteristics such as rapid operation, convenience.But the major defect of existing movable rotary-type its existence of heating apparatus for plastic pipe has: the one, and plastic pipe is along with annular rotating mechanism moves, when carrying out " revolution " heating by the thermal treatment zone, plastic pipe is " rotation " constantly, just can make plastic pipe be heated evenly quality assurance.The structure that produces plastic pipe " rotation " is under the rotating shaft of pipe supporting base pinion to be installed, tooth bar is installed, but tooth bar only is installed in the thermal treatment zone on frame, and in the non-thermal treatment zone, two as equipment does not have tooth bar, the pinion of supporting base rotating shaft produces neutral gear, and only " revolution " and can " rotation " be when reentering the thermal treatment zone, pinion and tooth bar often can not mesh, make whole supporting base can not " rotation " or extruding depart from, can influence heating quality like this, make product rejection.The 2nd, the stretching of plastic pipe partly (bottle) needs heating, and opening part can not heat, and could guarantee the sealing intensity with bottle cap; therefore; need line up protection in the thermal treatment zone, but existing protection structure is that baffle plate is installed in mouth of pipe both sides, the protection of this baffle arrangement is very limited.If but will all protect around the mouth of pipe, it is very difficult to get pipe after the heating.The 3rd, plastic pipe need heat, but the supporting base of delivery pipe needs continuous cooling, just makes its mouth of pipe that does not influence pipe (because mouthpiece cover is in the holder of supporting base base), but the prior art thermal treatment zone and cooling zone irrational distribution, the heating of pipe blank quality is influenced.

The purpose of this utility model is the defective that overcomes prior art, provides a kind of plastic pipe supporting base all can rotation in whole service, and the pipe supporting base can lifting in track, helps that pipe takes out, the plastic pipe heater that heating cooling subregion carries out.

The technical scheme of the full rotation lift of the utility model subregion heater is: one group of frame is arranged, the travelling mechanism that power, power transmission shaft, travelling gear and driving-chain are formed is installed on the frame, driving-chain connects the pipe support on one side, running route both sides at the pipe support are equipped with heater, continuous annular rack is installed under travelling mechanism, the rotation pinion is installed in supporting base rotating shaft in the pipe support, and the rotation pinion matches with annular rack, connecting leg base holder in the supporting base rotating shaft.

Full rotation lift subregion heater of the present utility model, heat shield is installed in its pipe holder outward, and match with guide rail in supporting base rotating shaft bottom, and so-called guide rail is divided into heating, preheating, cooling zone guide rail, lifting district guide rail and gets base district guide rail.

Full rotation lift subregion heater of the present utility model has the thermal treatment zone, preheating zone and pipe bearing cooling zone in pipe support running route, heating tube is installed in both sides, the thermal treatment zone, and economizer bank is installed in the both sides of preheating zone, and the cooling zone is installed cooling blower down.

Full rotation lift subregion heater of the present utility model is installed heating tube in a side of the pipe support running route thermal treatment zone, and opposite side is installed reflecting plate accordingly.

Full rotation lift subregion heater of the present utility model, a side of its preheating zone is installed economizer bank, and opposite side is installed reflecting plate accordingly.

The utility model discloses a kind of plastic pipe heater, compared with the prior art, have following advantage: the one, under pipe support whole service route, annular rack is installed, make the plastic pipe that is inserted in the pipe holder " rotation " incessantly, be heated evenly, operate steadily, quality assurance; The 2nd, outside the pipe holder, heat shield is installed, make plastic pipe pine for its mouth of pipe and reduce and be influenced by heat adding, guarantee the sealing property that cooperates with bottle cap, and the pipe mouth of pipe is ejected heat shield getting base district elevated guide, help taking-up; The 3rd, pipe support running route is divided into the thermal treatment zone, preheating zone and cooling zone make pipe preheating, heating rationally, and the pipe bearing keeps low temperature again, and the heating quality of plastic pipe further improves.

Fig. 1 is the full rotation lift of a utility model subregion heater schematic top plan view;

Fig. 2 is that the full rotation lift of the utility model subregion heater pipe supporting base is by lifting district schematic diagram.

Below in conjunction with Fig. 1-Fig. 2 embodiment of the present utility model is done detailed explanation.

1, frame; 2,7, travelling gear; 3, driving-chain; 4, heating tube; 5, the thermal treatment zone; 6,11, annular rack; 8,8 ', heat shield; 9,9 ', the pipe holder; 10, pipe support; 12,18, power transmission shaft; 13, economizer bank; 14, preheating zone; 15, rotation pinion; 16, pipe bearing cooling zone; 17, supporting base rotating shaft; 19, get base district guide rail; 19 ', pipe bearing lifting district guide rail; 19 ", heating, preheating, cooling zone guide rail; 20, steel ball; 21, spring; 23,24, the connecting hole of support and driving-chain; 25, support roller connecting hole; 26, securing member; 27, mouth of pipe screw thread; 28, mouth of pipe bulge loop; 29, plastic pipe.

The utility model is that two-step method is produced the heating of pipe blank device in the plastic containers, as shown in Figure 1 and Figure 2, one group of frame 1 is arranged, power is installed on the frame, drive power transmission shaft 18, travelling gear 2 by power, drive travelling gear 7, power transmission shaft 12, entire mechanism is rotated ringwise through driving-chain 3, one side of driving-chain 3 is connected with pipe support 10, and pipe support 10 has connecting hole 23,24.Rotating shafts 17 are installed in the pipe support 10, and pinions 15 are installed in rotating shaft 17, spring 21, the bottom is equipped with steel ball 20, rotating shaft 17 tops through securing member 26

connect pipe holders

9,9 '.For the mouth of pipe bulge loop 28 that makes plastic pipe 29 and mouth of pipe screw thread 27 reduce the influence of being heated, pipe holder 9,9 ' the outside, the top

installation heat shield

8,8 of pipe support 10 '.After heat shield is installed, taking-up pipe difficulty, must grab because get pipe at nozzle position, and cannot be by the stretch blow body of pipe, so steel ball 20 is pressed on the guide rail, at heating, preheating, cooling zone guide rail 19 " position is low; make the plastics mouth of pipe heat shield 8,8 ' in, get base district guide rail 19 projectioies, the plastics mouth of pipe is ejected heat shield outside; help taking out, the two of getting base district guide rail 19 have lifting district guide rail 19 '.Running route both sides at the pipe support are equipped with heating tube 4, a perhaps side anker heat pipe, and the corresponding reflecting plate of opposite side peace forms the thermal treatment zone 5.For firing rate is improved, economizer bank 13 is installed, or a side is economizer bank, opposite side is a reflecting plate, forms preheating zone 14.For fear of pipe holder 9,9 ' temperature savings increase, therefore cooling blower is installed below, form cooling zone 16.In order to make rotating shaft 17 in the pipe support together with pipe holder 9,9 ' and plastic pipe uninterrupted " rotation ", annular rack 6,11 is installed under travelling mechanism, annular rack cooperates with rotating shaft pinion 15, one week of annular rack continuously, comprise that two is all uninterrupted, rotation is steady, if without tooth bar, and also available internal gear.

Claims

1, full rotation lift subregion heater, one group of frame is arranged, power is installed on the frame, power transmission shaft (12,18), travelling gear (2,7) and the travelling mechanism formed of driving-chain (3), driving-chain (3) connects pipe support (10) on one side, running route both sides at the pipe support are equipped with heater, it is characterized in that installing under the travelling mechanism continuous annular rack (6,11), rotation pinion (15) is installed in supporting base rotating shaft (17) in the pipe support (10), rotation pinion (15) and annular rack (6,11) match, connecting leg base holder (9 is gone up in supporting base rotating shaft (17), 9 ').

2, full rotation lift subregion heater as claimed in claim 1, it is characterized in that the outer heat shield (8,8 ') of installing of pipe holder (9), match with guide rail in supporting base rotating shaft (17) bottom, so-called guide rail is divided into heating, preheating, cooling zone guide rail 19 ", lifting district guide rail 9 ' and get base district guide rail 9.

3, full rotation lift subregion heater as claimed in claim 1, it is characterized in that the thermal treatment zone (5), preheating zone (14) and pipe bearing cooling zone (16) are arranged in the pipe support running route, (5) two heating tube (4) is installed in the thermal treatment zone, economizer bank (13) is installed in the both sides of preheating zone (14), and cooling zone (16) install cooling blower down.

4, full rotation lift subregion heater as claimed in claim 3 is characterized in that a side of the thermal treatment zone (5) is installed heating tube, and opposite side is installed reflecting plate accordingly.

5, full rotation lift subregion heater as claimed in claim 3 is characterized in that a side of preheating zone (14) is installed economizer bank, and opposite side is installed reflecting plate accordingly.